Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study
Abstract Background The burden of dementia, multimorbidity, and disability is high in the oldest old. However, the contribution of dementia and comorbidities to functional ability in this age group remains unclear. We examined the combined effects of dementia and comorbidities on ADL and mobility di...
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| Format: | Article |
| Language: | English |
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BMC
2023-05-01
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| Series: | BMC Geriatrics |
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| Online Access: | https://doi.org/10.1186/s12877-023-03980-5 |
| _version_ | 1797831869253812224 |
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| author | Saritha Susan Vargese Marja Jylhä Jani Raitanen Linda Enroth Pauliina Halonen Mari Aaltonen |
| author_facet | Saritha Susan Vargese Marja Jylhä Jani Raitanen Linda Enroth Pauliina Halonen Mari Aaltonen |
| author_sort | Saritha Susan Vargese |
| collection | DOAJ |
| description | Abstract Background The burden of dementia, multimorbidity, and disability is high in the oldest old. However, the contribution of dementia and comorbidities to functional ability in this age group remains unclear. We examined the combined effects of dementia and comorbidities on ADL and mobility disability and differences between dementia-related disability between 2001, 2010, and 2018. Methods Our data came from three repeated cross-sectional surveys in the population aged 90 + in the Finnish Vitality 90 + Study. The associations of dementia with disability and the combined effects of dementia and comorbidity on disability adjusted for age, gender, occupational class, number of chronic conditions, and study year were determined by generalized estimating equations. An interaction term was calculated to assess differences in the effects of dementia on disability over time. Results In people with dementia, the odds of ADL disability were almost five-fold compared to people with three other diseases but no dementia. Among those with dementia, comorbidities did not increase ADL disability but did increase mobility disability. Differences in disability between people with and without dementia were greater in 2010 and 2018 than in 2001. Conclusion We found a widening gap in disability between people with and without dementia over time as functional ability improved mainly in people without dementia. Dementia was the main driver of disability and among those with dementia, comorbidities were associated with mobility disability but not with ADL disability. These results imply the need for strategies to maintain functioning and for clinical updates, rehabilitative services, care planning, and capacity building among care providers. |
| first_indexed | 2024-04-09T13:59:42Z |
| format | Article |
| id | doaj.art-2aeeb4e94e07447b9d57756d086087cc |
| institution | Directory Open Access Journal |
| issn | 1471-2318 |
| language | English |
| last_indexed | 2024-04-09T13:59:42Z |
| publishDate | 2023-05-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Geriatrics |
| spelling | doaj.art-2aeeb4e94e07447b9d57756d086087cc2023-05-07T11:23:11ZengBMCBMC Geriatrics1471-23182023-05-0123111110.1186/s12877-023-03980-5Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + studySaritha Susan Vargese0Marja Jylhä1Jani Raitanen2Linda Enroth3Pauliina Halonen4Mari Aaltonen5Faculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), Tampere University HospitalFaculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), Tampere University HospitalFaculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), Tampere University HospitalFaculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), Tampere University HospitalFaculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), Tampere University HospitalFaculty of Social Sciences (Health Sciences) and Gerontology Research Center (GEREC), Tampere University HospitalAbstract Background The burden of dementia, multimorbidity, and disability is high in the oldest old. However, the contribution of dementia and comorbidities to functional ability in this age group remains unclear. We examined the combined effects of dementia and comorbidities on ADL and mobility disability and differences between dementia-related disability between 2001, 2010, and 2018. Methods Our data came from three repeated cross-sectional surveys in the population aged 90 + in the Finnish Vitality 90 + Study. The associations of dementia with disability and the combined effects of dementia and comorbidity on disability adjusted for age, gender, occupational class, number of chronic conditions, and study year were determined by generalized estimating equations. An interaction term was calculated to assess differences in the effects of dementia on disability over time. Results In people with dementia, the odds of ADL disability were almost five-fold compared to people with three other diseases but no dementia. Among those with dementia, comorbidities did not increase ADL disability but did increase mobility disability. Differences in disability between people with and without dementia were greater in 2010 and 2018 than in 2001. Conclusion We found a widening gap in disability between people with and without dementia over time as functional ability improved mainly in people without dementia. Dementia was the main driver of disability and among those with dementia, comorbidities were associated with mobility disability but not with ADL disability. These results imply the need for strategies to maintain functioning and for clinical updates, rehabilitative services, care planning, and capacity building among care providers.https://doi.org/10.1186/s12877-023-03980-5Physical functioningOldest oldComorbidityMemory disorders |
| spellingShingle | Saritha Susan Vargese Marja Jylhä Jani Raitanen Linda Enroth Pauliina Halonen Mari Aaltonen Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study BMC Geriatrics Physical functioning Oldest old Comorbidity Memory disorders |
| title | Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study |
| title_full | Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study |
| title_fullStr | Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study |
| title_full_unstemmed | Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study |
| title_short | Dementia-related disability in the population aged 90 years and over: differences over time and the role of comorbidity in the vitality 90 + study |
| title_sort | dementia related disability in the population aged 90 years and over differences over time and the role of comorbidity in the vitality 90 study |
| topic | Physical functioning Oldest old Comorbidity Memory disorders |
| url | https://doi.org/10.1186/s12877-023-03980-5 |
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